EMPLOYEE BENEFITS (Details - Projected benefit obligation and the accumulated benefit obligation was in excess of the related plan assets and components of net periodic benefit cost ) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Pensions
Estimated amount that will be amortized from accumulated other comprehensive income into net periodic benefit cost over the next fiscal year
Prior service credit	$ 2
Aggregate net loss and prior service credit	35
Pension expense and effect of change in pension expense due to change in discount rate or expected long-term rate of return
Increase in expense due to decrease of 100 basis point in discount rate	23
Increase in expense due to decrease of 100 basis point in expected long-term rate of return	51
Decrease in expense due to increase of 100 basis point in discount rate	4
Decrease in expense due to increase of 100 basis point in expected long-term rate of return	51
Pensions | U.S. Plans
Components of net periodic benefit cost:
Service cost	11	$ 19	$ 192
Interest cost	166	181	220
Expected return on assets	(266)	(292)	(295)
Amortization of prior service (credit) cost	0	0	(22)
Amortization of net (gain) loss	26	25	92
Net periodic benefit cost (credit)	(63)	(67)	187
Curtailment (gain) loss	0	0	(179)
Settlement (Credit)/Charges	60	149	0
Net benefit cost (credit)	(3)	82	8
Total recognized in Accumulated other comprehensive income (loss)	32	(82)	143
Total recognized in net periodic benefit cost and other comprehensive income (loss)	35	(164)	135
Pensions | Non U.S. Plans
Components of net periodic benefit cost:
Service cost	29	31	43
Interest cost	16	21	25
Expected return on assets	(24)	(26)	(25)
Amortization of prior service (credit) cost	0	0	(2)
Amortization of net (gain) loss	12	7	9
Net periodic benefit cost (credit)	33	33	50
Curtailment (gain) loss	(6)	(6)	(1)
Settlement (Credit)/Charges	1	2	1
Net benefit cost (credit)	28	29	50
Total recognized in Accumulated other comprehensive income (loss)	87	(101)	38
Total recognized in net periodic benefit cost and other comprehensive income (loss)	59	(130)	(12)
Postretirement Plans
Estimated amount that will be amortized from accumulated other comprehensive income into net periodic benefit cost over the next fiscal year
Prior service credit	3
Postretirement Plans | U.S. Plans
Components of net periodic benefit cost:
Service cost	2	2	5
Interest cost	6	7	8
Expected return on assets	0	0	0
Amortization of prior service (credit) cost	(1)	(12)	(11)
Amortization of net (gain) loss	(1)	(1)	0
Net periodic benefit cost (credit)	6	(4)	2
Curtailment (gain) loss	0	(1)	0
Settlement (Credit)/Charges	0	0	0
Net benefit cost (credit)	6	(5)	2
Total recognized in Accumulated other comprehensive income (loss)	(2)	(7)	12
Total recognized in net periodic benefit cost and other comprehensive income (loss)	(8)	(2)	10
Postretirement Plans | Non U.S. Plans
Components of net periodic benefit cost:
Service cost	3	3	3
Interest cost	3	3	3
Expected return on assets	0	0	0
Amortization of prior service (credit) cost	(1)	0	(1)
Amortization of net (gain) loss	1	1	0
Net periodic benefit cost (credit)	6	7	5
Curtailment (gain) loss	(2)	0	0
Settlement (Credit)/Charges	0	0	0
Net benefit cost (credit)	4	7	5
Total recognized in Accumulated other comprehensive income (loss)	9	1	(9)
Total recognized in net periodic benefit cost and other comprehensive income (loss)	$ 5	$ (6)	$ (14)